Die-feeding mechanism.



PATENTED JAN. 22, 1907.

E. EINPELDT.

DIE FEEDING MECHANISM.

APPLICATION FILED NOV. 25, 1905.

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. PATENTED JAN. 22, 1907. I E. EINFELDT. DIE FEEDING MECHANISM.

APPLIGATION FILED NOV. 25. 1905.

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PATENTED JAN. 22

No. 124L950.

EINFELDT. DIE FEEDING MECHANISM.

APPLICATION FILED NOV. 25, 1905.

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UNITEDTSTATES PATENT OFFIOE.

EMIL EINFELDT, OF DAVENPORT, IOWA, ASSIGNOR TO BETTENDORF METAL WHEELCOMPANY, A CORPORATION OF IOWA.

Specification of Letters Patent.

Patented Jan. 22, 1907.

Application filed November 25, 1905. Serial No. 289.006-

To all whom it may concern.-

Be it known that I, EMIL EINFELDT, of Davenport, county of Scott, andState of Iowa, have invented a new and useful Improvement in Die-FeedingMechanism, of which the following is a specification.

This invention relates to mechanism for presenting a number ofshaping-dies successively into operative relation to the work beingoperated on, so that the latter may be subjected to the action of saiddies in succession.

The invention is designed with special reference to the formation of anaxle from a length of flanged metal bar, theseveral dies acting 011 theend of the bar in such manner and with such effect as to round theflanges and form a wheel-spindle and the invention consists in mechanismof improved form acting to automatically present the several dies insuccession in operative relation to the end of the bar, and acting tosubject the said bar to the action of said dies. It is manifest,however, thatmy invention is not limited to this special application,but may be employed in any case where it is desired to present aplurality of forming or shaping dies in succession automatically to thework under treatment.

In the accompanying drawings, Figure 1 is a side elevation of myimproved mechanism, partly in section. Fig. 2 is a top plan view of thesame. Fig. 3 is a vertical trans verse sectional elevation on the line 33 of Fig. 2. Fig. 4 is a vertical longitudinal section on the line 4 4of Fig. 3. Fig. 5 is a similar view with the parts in a differentposition.

Referring to the drawings, A represents a bed-plate or sustainingframe,on which is mounted near one end a reciprocating head B, extendingtransversely across the bed and connected at its opposite ends by meansof two fore-and-aft links O O, with two rotary disks or wheels D D,adapted to be operated by driving mechanism E 1n such manner that thedisk-wheels will be rotated continuously in the direction of the arrowin Fig. 1 and will impart to the head a reciprocating horizontal motionlongitudinally of the sustaining-bed.

As shown in Fig. 1, the reci rocating head is formed with up er andlbwer guidingshoulders I) b, on wiich is mounted to move transversely adie-carriage F, provided at its front with shaping or forming dies f fin the present instance five in number, situated side by side andadapted as the carin its transverse movements by the reciprocatingmovements of the head, the mechanism for this purpose comprising ahorizontal transverse rack H on the die-carriage engaged by a pinion I,carried by the head, which pinion" is operated intermittently by meansof a driving-disk J, receiving a stepby-step motion through intermediatedriving devices from the rocking action of one of the fore-and-aft linksconnecting the reci rocating head with the disk-wheels, t 1e mechanismoperating in such manner that during the first part of the forwardstroke of the reciprocating head the die-carriage will be movedtransversely a distance corresponding to that between two adjacentolies, when it will come to a rest, the remainder of the stroke of thereciprocating head forcing the die over the end of the bar, whichoperations being repeated the several dies are successively andautomatically brought into posi- ,tion in line with the bar, and thelatter is subjected to the action of the same.

The pinion I is fixed to the lower end of a vertical shaft i, mounted ina bearing 4/ on the upper end of an arm i rising from the reci rocatinghead, the upper end of said sha't being provided with a hand-wheel F, bywhich the parts may be manually operated, as will be presentlydescribed, to begin the operations anew after the several dies haveacted on the bar and completed its formation. Beneath the hand-wheel theshaft has fixed to it a horizontal bevel-pinion t engaged by a verticalbevel-pinion "L on the inner end of a horizontal transversely-extendingshaft K, mounted near its outer end in a bearing 7c in the upper end ofan arm is, extending from the reciprocating head, the inner end of saidshaft having a bearing in the side of the bearing i of the verticalshaft i.

The driving-disk J before alluded to is jected to the action of thesame.

keyed to the shaft K alongside its bearing 10, and the disk is providedon its periphery with driving-lugs j and f, in the present instancethree in number, spaced an equal distance apart. These driving-lugs areadapted to be engaged by a driving-dog L on a rocking lever L, looselyencircling the shaft K at the side of the driving-disk and having '1'ointed to it the forward end of the link Z, whose opposite end isjointed to the upper end of an arm Z, extending fixedly upward from theforward end of link C, where the latter is pivoted to the reciprocatinghead.

As a result of the construction described when the rear end of link Cpasses upward during the rotation of the disk D the arm Z on theopposite end of the link will be tipped or rocked forward, and throughthe medium of the connecting-link Z the lever L will be rocked forward,causing its driving-dog L to engage one of the driving-lugs on the diskand moving the latter afpartial revolution. The movement of thedriving-disk is imparted to the pinion I through the medium of shaft K,bevel-pinion i and i, and the pinion I engaging the rack on thedie-carriage will shift the latter transversely on the reciprocatinghead.

The driving-dog L is pivoted to the side of the lever L and normallyrests on the periphery of the disk, being acted on by a spiral spring 1which tends to hold it yieldingly against the disk. It is formed with anoffset shoulder Z adapted to engage the drivinglugs on the disk, and isprovided with a lateral extension or nose 1*, projecting at the side ofthe disk and adapted to engage a trippingroller M, arranged in the pathof the dog and carried on the upper end of an arm m, whose lower endloosely encircles the shaft-bearing K. Beyond the shaft-bearing the armis extended and has its extremity mounted between two set-screws m m,tapped in lugs m on the side of the bearing-arm 7c. The purpose of thisspecial construction is to en able the tripping-roller to be adjusted inpo sition so as to vary the point in the movement of the lever L atwhich the disengagement of the driving-dog shall take place and in thisway vary the lateral feeding movement of the die-carriage according tothe conditions encountered in practice.

During the forward movement of the lever L the driving-dog L willmaintain engagement with the driving-lug on the disk until the nose onthe driving-dog encounters the trippingroller, whereupon the dogoverriding the roller will be elevated and its shoulder will bedisengaged from the lug on the disk, causing the latter to come to arest. In this position of the parts one of the dies is in line with theend of the bar, and this die will be advanced by the forward movement ofthe reciprocating head and the bar will be sub- On the re- I turnmovement of the head the die will be withdrawn from the bar, and as therear end of link C rises as the next forward stroke of the reciprocatinghead begins the feedingdog (which had by the return movement of the linkC been drawn back ready to engage the next driving-lug) will engage thenext driving-lug and moving the disk a partial revolution as before thedie-carriage will be again moved transversely to bring the next die inposition, which will be arrested at the proper point by the tripping ofthe dog, and the continued movement of the reciprocating head will carrythe die forward over the bar. These operations are repeated until all ofthe dies have been brought in succession in line with the end of the barand the latter has been subjected to the action of the same and itsformation completed. To begin the operation anew on the next bar, thedriving-dog is lifted by hand free of the disk and the hand-wheel isturned to feed the die-carriage back to the starting position, and thecompleted bar being removed a new one is set in place and the formingoperation started, the driving-dog being of course released so that itmay perform its functions.

The bar to be acted on is to be held fixedly, as shown in Fig. 2, on theend of the bedplate, a clamping device 0, which may be of anyappropriate form, being provided for this purposeand adapted to closelyembrace the bar near its end and hold the same fixedly, with the end tobe acted 011 projecting inward and facing the dies.

Having thus described my invention, what I claim is 1. In a machine ofthe type described, the combination of means for holding the work, areciprocating head, means for reciprocating said head, a die-carriagemounted on the head and movable relatively to the same transversely, aplurality of dies on the carriage, a rackonthe carriage, adriving-pinion sustained by the head and in constant engagement with therack-teeth, and intermediate mechanism actuated by the headmotion to thedriving-pinion.

2. In a machine of the type described, the combination of -a bed-frame,means for holding the work fixedly thereon, a reciprocating head,actuating mechanism for reciprocating the same, a die-carriage providedwith a plurality of dies and mounted on said head to move transversely,a rack on the carriage, a pinion engaging the rack-teeth and sustainedby the head, a driving-shaft operatively connected with the pinion, adrivingdisk on the shaft, and mechanism, controlled by the saidhead-actuating mechanism, for imparting to said driving-disk astep-by-step movement.

3. In a machine of the type described, the combination of a movabledie-carriage, a

actuating means and operating to impart a plurality of dies thereonspaced apart and adapted by the movement of the carriage to bepositioned relatively to the work, a rotary driving-disk operativelyconnected with the carriage, a driving-dog adapted to engage and rotatethe disk, means for operating the dog, o

and means for tripping the dog when the carriage has moved a distancecorresponding to that between the dies.

4. In a machine of the type described, the combination of means forholding the work, a reciprocating head movable to and from the work, acarriage on the head movable horizontally in 'a transverse direction andprovided with a plurality of dies arranged in a horizontal line, ahorizontal rack on the carriage, a horizontal pinion mounted on the headand engaging the rack, a horizontal bevel-wheel connected with thepinion, a vertical bevel-wheel engaging the horizontal bevel-wheel, ahorizontal transverselyeX tending shaft mounted in bearings on the headand connected with the vertical bevelwheel, a driving-disk fixed to saidshaft, and means for imparting an intermittent motion to thedriving-disk; whereby as the head is reciprocated, the horizontal pinionwill impart to the rack on the carriage an intermittent transversemovement.

5. In a machine of the type described, the combination of means forholding the Work, a reciprocating head movable to and from the work, atransversely-movable carriage mounted on the head and provided with aplurality of dies, a horizontal transverselyarranged shaft mounted inbearings on the head, a pinion carried by the head and operativelyconnected with said shaft, a rack on the carriage engaged by saidpinion, a drivingdisk fixed to the shaft and provided with a number ofdriving-lugs, a vibratory lever mounted on the shaft, a driving-dogcarried by the lever and adapted, when the latter is vibrated, to engagethe lugs on the disk, and means for vibrating said lever.

6. In a machine of the type described, the combination of a movabledie-carriage, a driving-disk provided with lugs and operativelyconnected with the carriage, a vibratory lever sustained adjacent saiddisk, a driving-dog carried by the lever and adapted to engage the lugson the disk, an adjustable tripping device arranged in the path of thedriving-dog; whereby when the latter engages said tripping device, itwill be disengaged from the driving-lugs and permit the disk to come torest, and means for vibrating the lever.

7. Ina machine of the type described, the combination of means forholding the work, a reciprocating head movable to and from the work, anoperating mechanism for the reciprocating head, a vibrating link Cconnecting the operating mechanism with the reciprocating head, adie-carriage mounted on the head and movable transversely, a rotarydriving-disk carried by the head, an actuating mechanism between saidlink 0 and the driving-disk adapted by the vibratory motion of the linkto impart to the disk an intermittent motion, and operative connectionsbetween the disk and the die-carriage; whereby the intermittent motionof the disk will be imparted to the carriage.

8. In a machine of the type described, the combination of means forholding the work, a reciprocating head movable to and from the work,operating mechanism for the head, a vibratory link connecting saidoperating -mechanism with the head, an arm fixed rigidly to said link, atransversely-movable diecarriage mounted on the head, a rotarydriving-disk mounted on the head, 0 erative connections between saiddisk an die-carriage for moving the latter transversely, a vibratorylever mounted adjacent the drivingdisk, a dog on said lever adapted toengage and drive the disk, and a connection be tween said lever and thearm on the link.

9. In a machine of the type described, the combination of areciprocating head movable to and from the work, driving mechanismtherefor, a transversely-movable die-carriage mounted on the head, ahorizontal transverse rack on the die-carriage, a vertical shaft mountedin bearings on the head, a pinion on the shaft engaging the rack, abevel-pinion also on the shaft, a horizontal shaft mounted in bearingson the head, a bevel-pinion on the horizontal shaft engaging thebevel-pinion first mentioned, and means controlled by the head-drivingmechanism for operating the horizontal shaft.

In testimony whereof I hereunto set my hand, this 18th day of October,1905, in the presence of two attesting witnesses.-

EMIL EINFELDT. Witnesses:

M. LoUIs DODGE, LEON ZOECKLER.

